I am the primary applicant.
NIW PD 12/2003
140 approved 12/2004
485 filed on 2/2005
my 485 approved on 6/2006
my wife's 485 approved today (almost 1.5 year later).
NSC
So this information maybe useful for those primary applicant have gotten green cards but not dependents. Hope everybody will get their GC soon!